MCP1703AT-2052E/CB Microchip Integrated Circuit (SOT23 (3-Pin)) In Stock
Microchip MCP1703AT-2052E/CB is a low-dropout linear regulator with a 2.048 V fixed output, 16 V input range, and only 0.65 V dropout voltage in a SOT-23-3 package. Ultra-low quiescent current for battery applications. Available from stock worldwide.
- Manufacturer
- Microchip
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- MCP1703AT-2052E/CB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4473(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP1703AT-2052E/CB?
- Wide input voltage range of 2.7 V to 16 V accommodates unregulated wall adapters and automotive 12 V rails in a single tiny SOT-23-3 package
- Low 0.65 V dropout voltage at full load extends battery run time by allowing operation down to near the regulated output voltage
- Precise 2.048 V fixed output voltage matches ADC reference requirements directly, eliminating external precision voltage references in data-acquisition circuits
What is MCP1703AT-2052E/CB used for?
The MCP1703AT-2052E/CB is designed for battery-powered instrumentation, portable data loggers, and ADC reference supply rails requiring a stable 2.048 V output with minimal self-heating in a miniature SOT-23-3 footprint. Its 2.7 V to 16 V input tolerance makes it usable across single-cell Li-Ion, 9 V alkaline, and 12 V automotive supply environments without design changes. Low-quiescent-current operation suits always-on sensor nodes where standby power below 1 mA is critical for long battery life.
What are the specifications of MCP1703AT-2052E/CB?
| Manufacturer Package Code | SOT-23A-3 |
| Factory Lead Time | 6Weeks |
| YTEOL | 13 |
| Adjustability | FIXED |
| Dropout Voltage1-Nom | 0.65V |
| Input Voltage Absolute-Max | 18V |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 2.7V |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.081795% |
| Load Regulation-Max | 0.05125% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.2A |
| Output Voltage1-Max | 2.091V |
| Output Voltage1-Min | 2.009V |
| Output Voltage1-Nom | 2.05V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-236 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Voltage Tolerance-Max | 2% |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Taiwan, Thailand |
Where can I find the MCP1703AT-2052E/CB datasheet?
MCP1703AT-2052E/CB Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP1703AT-2052E/CB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Why does the 2.048 V output of MCP1703AT-2052E/CB make it especially useful for ADC reference circuits?
A 2.048 V reference aligns directly with 12-bit ADC full-scale values, giving exactly 0.5 mV per LSB step. Using the regulator output as both the supply and ADC reference avoids a separate precision reference IC, reducing BOM cost and PCB area in data-acquisition modules and portable meters.
How does the 0.65 V dropout voltage of MCP1703AT-2052E/CB benefit battery-operated designs?
With a 0.65 V dropout, the regulator maintains its 2.048 V output as long as input voltage stays above approximately 2.7 V. For a 3.0 V Li-Ion cell near end of discharge, that leaves a usable operating margin of 350 mV, extending device run time by tens of minutes versus a regulator with a 1 V dropout specification.
Can MCP1703AT-2052E/CB handle a 12 V automotive supply without modification?
Yes. The MCP1703AT-2052E/CB accepts input voltages up to 16 V continuously, which safely accommodates a nominal 12 V automotive rail including load-dump transients up to 16 V. The SOT-23-3 package dissipates up to approximately 300 mW depending on thermal derating, supporting output currents up to 250 mA at modest input-output differentials.
How does the MCP1703AT-2052E/CB compare in package size to a conventional TO-92 LDO for the same function?
The SOT-23-3 package measures 1.75 mm × 2.9 mm, occupying about 5 mm² of PCB area, while a TO-92 footprint requires approximately 50 mm² — a 10-fold reduction. This size advantage allows integration in handheld meters, wearable devices, and compact IoT sensors where a full TO-92 regulator would not physically fit on a constrained 20 mm × 20 mm board.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.7500 | $0.75 |
| 25+ | $0.6280 | $15.70 |
| 100+ | $0.5600 | $56.00 |
| 1000+ | $0.5200 | $520.00 |
| 5000+ | $0.4900 | $2450.00 |
| 12000+ | $0.4473 | $5367.60 |
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